Introduction to Qualitative Research
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Transcript of Introduction to Qualitative Research
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Introduction to Qualitative Research
Methods, Design, & Data Analysis
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دکتر محمد کمالیاستاديار دانشکده علوم
توانبخشیدانشگاه علوم پزشکی
ايران
پستی - صندوق 17445-183تهران
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Qualitative ResearchQualitative Research
“You can learn a lot just by watching”
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Origins of Qualitative Approaches
• Developed as a reaction to positivist philosophy which had overrun all sciences, even philosophy itself• Recognition that the lived world of humanity requires a different research approach to the natural world
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MAKING SENSE OF OTHERS’ REALITY
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scientific paradigms• Quantitative and qualitative research may largely
be seen as existing within two separate scientific
paradigms.
• Quantitative Research is rooted in the Positivist
paradigm.
• Qualitative Research is rooted in the Interpretive
paradigm.
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BASIC CONCEPTS• A scientific paradigm connects and categorises a variety of
research techniques through underlying philosophical assumptions surrounding appropriate research practice.
• Within each paradigm the nature of knowledge is assumed to be different.
• Epistemology is the philosophical debate about the nature of knowledge.
• Methodology – specifies how the researcher may go about practically studying whatever he or she believes can be known (the theory informing the practice of research).
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THE POSITIVIST PARADIGM• Positivism argues that research should act “… as an
organised method …” surrounding precise empirical observations of individual behaviour in order to discover and confirm a set of probabilistic causal laws that can be used to predict general patterns of human activity” (Neuman, 1997: 63)
• Empiricism argues that only that which can be experienced through the senses may be known to be real.
• Positivist research gained dominance in the natural sciences and was later adopted in social sciences.
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THE INTERPRETIVE PARADIGM
• The interpretive approach argues that research should explore “…socially meaningful action through the direct detailed observation of people in natural settings in order to arrive at understandings and interpretations of how people create and maintain their social worlds” (Neuman, 1997:68).
• We use “… methods that try to describe and interpret people’s feelings and experiences in human terms rather than through quantification and measurement” (Terre Blanche & Kelly, 1999: 123).
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POSITIVIST INTERPRETIVE
Discovery of universal laws governing social world.
Discovery of how people make sense of their social worlds.
A fixed social reality exists that may be measured and described.
Many social realities exist due to varying human experience.
Human behaviour is both rational and predictable.
Human behaviour is context bound and variable.
Positivist science is capable of uncovering ‘truth’.
Common sense provides insight into social realities.
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POSITIVIST INTERPRETIVE
Discovery of social fact is achieved through reason.
Understanding of social reality is achieved through rich contextual description.
Empirical observation serve to illuminate social facts.
Contextual understanding exposes a social reality.
Objective, value-free study is crucial in social research.
Recognition of subjectivity in social research is important.
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Elements of the Research Process
DEDUCTIVE & INDUCTIVE REASONING
Deductive thinking (Quantitative)
THEORY
HYPOTHESIS
OBSERVATION
CONFIRMATION
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Elements of the Research Process (Cont.)
Inductive thinking (Qualitative)
OBSERVATION
PATTERNS
HYPOTHESIS
THEORY
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QUANTITATIVE QUALITATIVE
Research process is deductive.
Research process is inductive.
Measure objective facts. Social reality, meaning is constructed.
Focus on variables. Focus on in-depth meaning.
Value-free research. Values are present & explicit (empathy).
Independent of context. Contextual importance.
Many cases, subjects. Few cases, participants.
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QUANTITATIVE QUALITATIVE
Statistical analysis Thematic analysis
Objective instruments of data collection.
Researcher as the central tool for data collection.
Highly structured research process.
Loosely structured research process.
Researcher is detached(outsider).(Adapted from Neuman, 1997: 14)
Researcher is immersed (insider).
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QUANTITATIVE QUALITATIVE
result oriented process oriented
particularistic and analytical
holistic perspective
objective “outsider view” distant from data
subjective “insider view” and closeness to data
generalized by population membership
generalization by comparison of properties and contexts of individual organism
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• Although positivist approach attempts to
understand social phenomena through largely
quantitative means, and the interpretive
approach mainly through qualitative techniques.
• it is important not overemphasise the difference
between these methods.
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• Commonly called “interpretive research”
…its methods rely heavily on “thick” verbal descriptions of a particular social context being studied
Qualitative research...
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• It is useful for describing or answering questions about particular, localized occurrences or contexts and the perspectives of a participant group toward events, beliefs, or practices
…a helpful process for exploring a complex research area about which little is known
Qualitative research...
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• Interpretation, as the core of qualitative research focuses on the meaning of human experience.
• The focus is on understanding human experience rather than explaining and predicting behaviour.
• It is acknowledged that meaning and behaviour occurs within particular social, cultural and historical contexts.
Qualitative research...
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““Qualitative ResearchQualitative Research””a definition by Van Maanen (1979)
“An umbrella term covering an array of interpretive techniques which seek to describe, decode, translate, and otherwise come to terms with the meaning, not the frequency, of certain naturally occurring phenomena in the social world” (p. 520)
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““Qualitative ResearchQualitative Research””a definition by (Banister et al., 1994)
Qualitative research is “…the interpretive study of a specified issue or problem in which the researcher is central to the sense that is made”
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““Qualitative ResearchQualitative Research””a definition by (Banister et al., 1994)
“The goal of qualitative research is the development of concepts which help us to understand social phenomena in natural (rather than experimental) settings, giving due emphasis to the meanings, experiences, and views of all the participants.”
Pope & Mays. BMJ 1995; 311: 42-45.
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Essential Characteristics of Essential Characteristics of Qualitative ResearchQualitative Research
• concerned with understanding a phenomenon• assumes multiple realities• data is in the form of rich verbal descriptions• researcher is immersed and in direct contact
during the data collection• the data collection is highly interactive• data collection methodology evolves and is
flexible; a “tentative” approach to the methodology
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Essential Characteristics of Essential Characteristics of Qualitative ResearchQualitative Research
• emphasizes the holistic perspective• research is context sensitive• illuminate the invisibility of everyday life; “make the
familiar strange”• construct meaning from the participant’s point of
view (“informants” rather than “subjects”)• explores open questions rather than testing
hypothesis• employs purposive sampling and “gate keepers”
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Appropriateness of Appropriateness of Qualitative ResearchQualitative Research
• When variables cannot be quantified• When variables are best understood in their
natural settings• When variables are studied over time• When studying roles, processes, and groups• When the paramount objective is “understanding”
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What to Observe or Study
• Behaviors or practices• Episodes, common events (death, birth, etc.)• Encounters –when groups or people interact• Roles• Relationship roles – mother/daughter;
wife/husband, Therapist/disabled,… etc.
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Qualifications of InvestigatorsQualifications of Investigators(Kuh & Andreas, 1991)
• Must have requisite knowledge and skills about methodology, setting and nature of the issue.
• Must be familiar with own biases, assumptions, expectations, and values.
• Must be empathic, intelligent, energetic, and interested in listening
• Must be open to embracing multiple realities.• Must be prepared to produce detailed,
comprehensive, and sometimes lengthy reports.
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The Qualitative Research DesignThe Qualitative Research Design“a rough working frame” --(Whitt, 1991)
• An initial focus (problem, phenomenon, question)
• Phases of the study (background, entry, exploration, closure)
• Plan for identifying setting and data sources• Plan and logistics for data collection and
analysis• Plan for ensuring trustworthiness
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Phases in Qualitative Research
Conceptualize and plan studyUse literature,formulate study purpose or question, identify study site,settings where/how data collection will occur, participants and entrée to setting
Start study with concurrent data collection and analysis. Analysis focused on identifying themes and categories-- similarities in data. Question or purpose may emerge and be refined. Data collection strategies may change
Sampling and data collection determined by theoretical saturation. Analysis based on narrative description
Goal: Access the participants world & meanings. Researcher is the instrument
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Selecting participants...
• The goal is to get the deepest possible understanding of the setting being studied
• Requires identifying participants who can provide information about the particular topic and setting being studied
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Selecting participants...
• It is fraught with difficulties in identifying and selecting an appropriate number of participants who can provide useful information about the particular topic and setting being studied
• Utilizes purposive sampling
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Random “Quantitative” SamplingSelect Representative individuals
To generalize from sample to populationTo make claims about the populationTo build/test “theories” that explain the pop’n
Purposeful “Qualitative” Sampling Select people/sites who can best help us understand our phenomenon
To develop detailed understandingThat might be “useful: informationThat might help people “learn” about the phenomenonThat might give voice to “silenced” people
Differences Between Random & Purposeful Sampling
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• Sample size is always determined by the analysis. It is part of the design and so is influenced by the nature of the inquiry, quality of the informants, the quality of the data.
• The researcher is looking for saturation—the point at which there is no new cases coming from each new participant and redundant information keeps coming up.
• This must be differentiated from participant saturation where the researcher cannot drag anything new out of the umpteenth interview with that particular person.
Sampling in Qualitative Studies
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Types of Data CollectionTypes of Data Collection(or “fieldwork”)
Observation
Interviewing
Focus Groups
Document Analysis
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The Three-Interview SeriesThe Three-Interview Series(Seidman, 1998)
Interview One: Life History
Interview Two: Details of the Experience
Interview Three: Reflection on the Meaning
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• Method to enhance the validity & reliability of qualitative research
• Enhances accuracy of interpretation
• Confirms that the data collected is not due to chance or circum-stances
Qualitative Research Methods:Triangulation
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Collect data from multiple sources
Collect data in multiple ways from subjects
Collect different kinds of data in multiple ways from multiple subjects
For example: May interview teachers,
principals & parents May interview &
observe students
May review student records, interview teachers, observe students
Qualitative Research Methods:Triangulation
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Multiple data sources
Multiple kinds of data
Multiple data collection strategies
Subjects(data sources)
Data collection strategies
Kinds of data
Qualitative Research Methods:Triangulation
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ResourcesResources(Kuh & Andreas, 1991)
• Recording devices• Transcribing equipment• Software packages for analyzing• Member checks participants• Space• Time
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The DataGenerally collected in
the form of…field notes,diariesaudio & video tapes, copies of documents,narrative descriptions
Analysis• Some form of
analysis usually takes place at the same time data is being collected
• Researcher seeks to identify patterns or trends
Qualitative Research:Data Analysis
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Qualitative data may be analyzed by a 3-part strategy:
reducing the data coding the data synthesizing the data
Qualitative Research:Data Analysis
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• Read and re-read data, become engrossed in it.• Identify themes: common, conflicting, minority• Test themes across the data set, where are they common,
under what circumstances are they found, not found. This sets the parameters on the interpretation and generalisation of data
• Get more than one person to analyse the data independently then together
• Demonstrate trustworthiness in data analysis
Qualitative Research:Data Analysis
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Common Qualitative Common Qualitative Research ApproachesResearch Approaches
• Case study• Ethnography• Grounded theory• Phenomenology• Historical• Action Research
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